plonk UK /plɒŋk/US /plɑŋk/verb 3exclamation 2noun 4adverb 1forms 3 verb3 •To set or toss (something) down carelessly.When you’ve finished with the sponge, just plonk it back in the sink. •[with oneself] To sit down heavily and without ceremony. •(Internet) To automatically ignore or block a particular poster.I got tired of his trolling and ad hominem attacks, so I plonked him. exclamation2 •The sound made by something solid landing. •(Internet) The supposed sound of adding a user to one's kill file. noun4 •(UK, informal) Cheap or inferior everyday wine. •The sound of something solid landing.I just heard a plonk – did something fall down in the kitchen? •(slang, offensive) A female police constable.Chris and that plonk had better be flushing the scum out. •(slang, historical) AC Plonk adverb1 •Precisely and forcefully.He dropped his bag of tools plonk in the middle of the table. formsplonked · plonking · plonks